/Engine/Source/Runtime/Core/Public/Math/Vector4.h
Constructor allowing copying of anTVector4whilst setting up a new W component.
template<typename FArg, TEMPLATE_REQUIRES(std::is_arithmetic< FArg >::value)> TVector4 ( const [UE::Math::TVector4](API\Runtime\Core\Math\TVector4)< T > & InVector, FArg OverrideW )